using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Text;

namespace ShowGridNumber
{
    public class DllImportManeger
    {
        [DllImport("user32.dll")]
        public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

        [DllImport("user32.dll")]
        public static extern IntPtr FindWindow(string strclassName, string strWindowName);

        [DllImport("user32.dll")]
        public static extern IntPtr GetLastActivePopup(IntPtr hWnd);

        [DllImport("user32.dll")]
        public static extern IntPtr AnyPopup();

        [DllImport("user32.dll")]
        public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);

        [DllImport("user32.dll", CharSet = CharSet.Ansi)]
        public static extern int SetWindowText(IntPtr hwnd, string lpString);

        [DllImport("user32.dll")]
        public static extern IntPtr ReleaseCapture();

        [DllImport("user32.dll")]
        public static extern IntPtr SetCapture(IntPtr hWnd);

        [DllImport("user32.dll")]
        public static extern IntPtr SetFocus(IntPtr hWnd);

        [DllImport("user32.dll")]
        public static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);

        [DllImport("user32.dll")]
        public static extern IntPtr EnumThreadWindows(IntPtr dwThreadId, DllImportManeger.CallBack lpfn, IntPtr lParam);

        [DllImport("user32.dll")]
        public static extern IntPtr EnumWindows(DllImportManeger.CallBack lpfn, IntPtr lParam);

        [DllImport("user32.dll")]
        public static extern IntPtr EnumChildWindows(IntPtr hWndParent, DllImportManeger.CallBack lpfn, IntPtr lParam);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);

        [DllImport("user32.dll")]
        public static extern IntPtr WindowFromPoint(Point Point);

        [DllImport("user32 ")]
        public static extern int GetKeyboardState(byte[] pbKeyState);

        [DllImport("user32 ")]
        public static extern int ToAscii(int uVirtKey, int uScanCode, byte[] lpbKeyState, byte[] lpwTransKey, int fuState);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr CallWindowProc(IntPtr wndProc, IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool ClientToScreen(IntPtr hWnd, ref Point pt);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool ScreenToClient(IntPtr hWnd, ref Point pt);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, DllImportManeger.NewWndProc wndproc);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr CallWindowProc(IntPtr wndProc, IntPtr hWnd, IntPtr msg, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll")]
        public static extern IntPtr DefWindowProc(IntPtr hwnd, int wMsg, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll")]
        public static extern int SendMessageA(IntPtr hwnd, int wMsg, IntPtr wParam, StringBuilder lParam);

        [DllImport("user32.dll")]
        public static extern int GetWindowRect(IntPtr hWnd, out DllImportManeger.Rect lpRect);

        [DllImport("user32.dll")]
        public static extern int GetClientRect(IntPtr hWnd, out DllImportManeger.Rect lpRect);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr BeginPaint(IntPtr hWnd, ref DllImportManeger.PAINTSTRUCT ps);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool EndPaint(IntPtr hWnd, ref DllImportManeger.PAINTSTRUCT ps);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr UpdateWindow(IntPtr hWnd);

        public delegate bool CallBack(IntPtr hwnd, IntPtr lParam);

        public delegate IntPtr NewWndProc(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

        public struct PAINTSTRUCT
        {
            public IntPtr hdc;

            public int fErase;

            public Rectangle rcPaint;

            public int fRestore;

            public int fIncUpdate;

            public int Reserved1;

            public int Reserved2;

            public int Reserved3;

            public int Reserved4;

            public int Reserved5;

            public int Reserved6;

            public int Reserved7;

            public int Reserved8;
        }

        public struct Rect
        {
            public int left;

            public int top;

            public int right;

            public int bottom;
        }
    }
}